Droid 2 flash help?

Okay, so, I had a huawei ascend on cricket and I flashed my droid 2 over to cricket a couple months ago, but I hadn't activated it yet. Due to a series of very unlikely events, I was unable to pay my bill and lost my phone number. But that droid 2 is still set up on that number. If I bring it in to cricket, can they still activate it with a new number? Or do I have to activate my ascend again and set up the droid 2 all over again?

I'm hoping to take care of this today, so a quick reply would be greatly appreciated! Thank you ahead of time!

I used the tutorial on this site. I worked fine. everything is running perfectly. mms, text, call, data.
But I am curious, is it still possible for me to install cm7 onto my phone even though I flashed it? Or should I have thought bout that before I flashed?